This is a review and detailed measurements of the RCF AYRA PRO 5 powered studio monitor (speaker). I purchased this new from Amazon for US $149 (each) including shipping.
The PRO5 looks serious enough although a bit busy for my taste. Like the waveguide for the tweeter which should make for more controlled directivity.
You have the standard controls here. It is bi-amped with dual class D amps (45 and 25 watts). My room is a bit noisy for this type of test but I put my ear close to the tweeter and I could barely hear a hiss.
Company advertises FIR filters and DSP correction.
Measurements that you are about to see were performed using the Klippel Near-field Scanner (NFS). This is a robotic measurement system that analyzes the speaker all around and is able (using advanced mathematics and dual scan) to subtract room reflections (so where I measure it doesn't matter). It also measures the speaker at close distance ("near-field") which sharply reduces the impact of room noise. Both of these factors enable testing in ordinary rooms yet results that can be more accurate than an anechoic chamber. In a nutshell, the measurements show the actual sound coming out of the speaker independent of the room.
Measurements are compliant with latest speaker research into what can predict the speaker preference and is standardized in CEA/CTA-2034 ANSI specifications. Likewise listening tests are performed per research that shows mono listening is much more revealing of differences between speakers than stereo or multichannel.
Reference axis was the center of the tweeter (aligned by eye). Measurement room was at 10 degrees C which may lower bass output a bit. Accuracy is better than 1% which is quite good.
RCF PRO5 Measurements
Acoustic measurements can be grouped in a way that can be perceptually analyzed to determine how good a speaker is and how it can be used in a room. This so called spinorama shows us just about everything we need to know about the speaker with respect to tonality and some flaws:
The on-axis response is fairly irregular and we see many resonances as we approach 1 kHz. Near-field measurements indicate that it is the cabinet/port that is resonating:
Being front-ported means that these resonances would be more audible than they would be otherwise.
Directivity is good which means flaws in on-axis response also translate to off-axis:
Predicted in-room response as a result is not very pretty:
The port/cabinet resonances are causing coloration in upper bass and midrange. The trough will impact openness of the sound in lower treble. On the other hand, bass extension is quite good with flat response down to 60 Hz! Likely it is enjoying DSP correction given the sharp drop below that.
Beam width measurement shows delightfully smooth and even response in horizontal axis:
Vertical is not very pretty but that is typical of 2-way speakers:
Distortion is kept in check at 86 dbSPL with the exception of a pronounced resonance:
Waterfall display shows the resonances we have seen in other graphs:
Here are the impulse and step response for those of you interested in that:
RCF AYRA PRO5 Listening Tests & EQ
I was not fond of the out of box sound although it was not terrible. So brought out the EQ tool and applied some broad, macro-level corrections:
After listening with EQ on for a few minutes, going back clearly showed the problems with stock response. Upper bass is exaggerated and midrange is colored. With EQ, this was very acceptable response especially when one considers the price of this speaker.
Power handling was excellent. Bass deep was there (relative to the size of this speaker) and as you turned it up, speaker gradually limited the output. It avoided cracking or any other odd response. Just wouldn't keep getting much louder.
Conclusions
RCF gets a lot of things right here with nice directivity, power handling and design, bass output, etc. The one thing they left to chance is port/cabinet resonances. If that was not there, this would have been one remarkable speaker. Fortunately such resonances have a rather mild effect and EQ was effective against them. Once there, I was pleased with the performance of the speaker and dynamic capabilities. You are getting two amps, DSP and two DACs and a speaker for just $149. Lots of value here.
I am going to assume that you will be applying EQ to this speaker and as such, I can recommend it.
EDIT: Video Review Posted:
-----------
As always, questions, comments, recommendations, etc. are welcome.
Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
The PRO5 looks serious enough although a bit busy for my taste. Like the waveguide for the tweeter which should make for more controlled directivity.
You have the standard controls here. It is bi-amped with dual class D amps (45 and 25 watts). My room is a bit noisy for this type of test but I put my ear close to the tweeter and I could barely hear a hiss.
Company advertises FIR filters and DSP correction.
Measurements that you are about to see were performed using the Klippel Near-field Scanner (NFS). This is a robotic measurement system that analyzes the speaker all around and is able (using advanced mathematics and dual scan) to subtract room reflections (so where I measure it doesn't matter). It also measures the speaker at close distance ("near-field") which sharply reduces the impact of room noise. Both of these factors enable testing in ordinary rooms yet results that can be more accurate than an anechoic chamber. In a nutshell, the measurements show the actual sound coming out of the speaker independent of the room.
Measurements are compliant with latest speaker research into what can predict the speaker preference and is standardized in CEA/CTA-2034 ANSI specifications. Likewise listening tests are performed per research that shows mono listening is much more revealing of differences between speakers than stereo or multichannel.
Reference axis was the center of the tweeter (aligned by eye). Measurement room was at 10 degrees C which may lower bass output a bit. Accuracy is better than 1% which is quite good.
RCF PRO5 Measurements
Acoustic measurements can be grouped in a way that can be perceptually analyzed to determine how good a speaker is and how it can be used in a room. This so called spinorama shows us just about everything we need to know about the speaker with respect to tonality and some flaws:
The on-axis response is fairly irregular and we see many resonances as we approach 1 kHz. Near-field measurements indicate that it is the cabinet/port that is resonating:
Being front-ported means that these resonances would be more audible than they would be otherwise.
Directivity is good which means flaws in on-axis response also translate to off-axis:
Predicted in-room response as a result is not very pretty:
The port/cabinet resonances are causing coloration in upper bass and midrange. The trough will impact openness of the sound in lower treble. On the other hand, bass extension is quite good with flat response down to 60 Hz! Likely it is enjoying DSP correction given the sharp drop below that.
Beam width measurement shows delightfully smooth and even response in horizontal axis:
Vertical is not very pretty but that is typical of 2-way speakers:
Distortion is kept in check at 86 dbSPL with the exception of a pronounced resonance:
Waterfall display shows the resonances we have seen in other graphs:
Here are the impulse and step response for those of you interested in that:
RCF AYRA PRO5 Listening Tests & EQ
I was not fond of the out of box sound although it was not terrible. So brought out the EQ tool and applied some broad, macro-level corrections:
After listening with EQ on for a few minutes, going back clearly showed the problems with stock response. Upper bass is exaggerated and midrange is colored. With EQ, this was very acceptable response especially when one considers the price of this speaker.
Power handling was excellent. Bass deep was there (relative to the size of this speaker) and as you turned it up, speaker gradually limited the output. It avoided cracking or any other odd response. Just wouldn't keep getting much louder.
Conclusions
RCF gets a lot of things right here with nice directivity, power handling and design, bass output, etc. The one thing they left to chance is port/cabinet resonances. If that was not there, this would have been one remarkable speaker. Fortunately such resonances have a rather mild effect and EQ was effective against them. Once there, I was pleased with the performance of the speaker and dynamic capabilities. You are getting two amps, DSP and two DACs and a speaker for just $149. Lots of value here.
I am going to assume that you will be applying EQ to this speaker and as such, I can recommend it.
EDIT: Video Review Posted:
-----------
As always, questions, comments, recommendations, etc. are welcome.
Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
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